I came across a discussion of real time programing on this site which seemed to have some good insights. I would like to get your thoughts on my next project.
I plan to write a C# HMI for a machine ...

I know it is a common practice to send cpu-bounded heavy tasks to background processes, in order to free a web server to serve other requests.
But - what if the request must know the result of that ...

I have a model for an app that is fairly large, all of which needs to be on a users' device at the same time. For example, a spreadsheet. If a user makes a change to the model on one device, I want ...

In my project, I'm going to create lots of mini games. Those mini games can last 30 seconds to 1 week (the duration of the game is decided when it is created and is fixed).
The number of concurrent ...

I am working on a project right now that is having me calculate monthly interest on a bank account. The way the interest is supposed to be calculated is as follows:
Use the daily average to calculate ...

Normally semaphores are implemented as integer variables. The value of a semaphore represents initially the number of processes that are allowed to access the shared resource at the same time, which ...

I'm writing a soft real-time application in C#. Certain tasks, like responding to hardware requests coming in from a network, needs to be finished within a certain amount of milliseconds; however it ...

Since I last had to do any comms/network programming, the field has exploded with acronyms. In fact, networking almost feels like it is now described by a whole new language.
The very name "Windows ...

I have a system that must output decisions and alerts based on input read from a messaging queue. This system will hold state about all objects in memory and update this state based on input from the ...

When you are working on a feature that depends on time... How do you organize unit testing ? When your unit tests scenarios depend on the way your program interprets "now", how do you set them up ?
...

In my project we are trying to build up a KIND-of-a-lambda storm based architecture. The component would be responsible for indexing the site usage events so we expect a quite massive random load. The ...

I would like to display some events in 'real-time'. However, I must fetch the data from another source. I can request the last X minutes, though the source is updated approximately every 5 minutes. ...

I am working on a project in which we have a desktop application that should be able to receive commands from a web application. To solve this issue, using sockets seems like a good approach (instead ...

Is it possible to apply a filter on the Kafka stream of topic?
What I want to do is filter out messages while consuming and then run some custom logic on top of it. It is a sort of thing that Storm ...

I want multiple users to edit same document. Problem I'm facing is when a new user joins, he might see an outdated document. How do I make sure that new users get most recent changes?
Some solutions ...

I played a bit with WebSockets and started to implement a tiny chat. Last time I did something like this was when there was no such thing as threads and computers had single core. I started to think ...

I've been tasked with creating a dashboard application to show real time updates for our servers. The raw data comes in from an XML file on our intranet which I need to parse and present to the user.
...

I need to add a certain feature to a module in a given project regarding time calculation. For this specific case I'm using Java and reading through the documentation of the Date class I found out the ...

I was wondering if anyone knows what is the operating system used in commercial airplanes (say Boeing or Airbus).
Also, what is the (preferred) real-time programing language? I heard that Ada is used ...

I have a simple form for the user to sign up to my site; with email, username and password fields. We are now trying to implement an ajax validation so the user doesn't have to post the form to find ...

Me and my friend are developing a web-app in Python + Flask + PostgreSQL. We have been working on it for the past few months and have developed a lot of schema/use-cases specific to Python + Flask + ...

I'd want to implement a Real-time chat for my Rails app but I can't really host the server which handles the sockets. I've tried Faye but it needs a server. I've also heard of pusher but it's limited ...

I'm looking into real-time web applications using websockets and node.js. I'm interested to see what are some technical challenges with scaling such a setup.
One such problem I've heard is that each ...